***Some people do not live in the same house all the time. They keep traveling from one place to another. These people are called nomads. In ancient times nomads lived in tents made of cloth. Even today nomads, like the Bedouins in North Africa, live in tents made from camel and goat hair.

Architecture is the art of building structure. Who started using terms for architecture? The Greeks started using this terms. They thought architecture or the skill of building could be of different types. Styles depend upon columns, capitals and other decorations.